Brooklyn-based noise pop duo Sleigh Bells’ ironically-named sophomore album, “Reign of Terror,” proves the band has begun a reign not of terror but of variety and staying power. Sleigh Bells’ first album, “Treats,” achieved success and popularity through raw power and visceral vocals but filled a narrow niche in an emerging genre of music. The sweet innocence of newly-introduced pop lyrics from Alexis Krauss and the sour assault of harder, more frequent guitar riffs from Derek Miller combine in “Reign of Terror” to form an irresistible sound that appeals to a wider audience’s musical palette. Sleigh Bells’ diverse new sound is aptly represented by its album cover, depicting a pair of white shoes with one shoe neatly laced and the other tattered and bloody. 
Grade: A